In this Aug. 29, 2017, photo, an ATF agent poses with homemade rifles, or "ghost guns," at an ATF field office in Glendale, Calif. Police say Kevin Neal, who was barred from having guns because of a restraining order, made the two high-powered rifles he used in his shooting rampage in Northern California on Tuesday, Nov. 14. Jae C. HongAP

In this Aug. 29, 2017, photo, an ATF agent poses with homemade rifles, or "ghost guns," at an ATF field office in Glendale, Calif. Police say Kevin Neal, who was barred from having guns because of a restraining order, made the two high-powered rifles he used in his shooting rampage in Northern California on Tuesday, Nov. 14. Jae C. HongAP